Fountain pen



FIG. 1 is a perspective view of a fountain pen showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a perspective view of the fountain pen with the cap disposed on the end remote from the writing point. The ribbed portion adjacent to the writing point is the same all the way around as the portion disclosed in the drawing. The writing point is the conventional pen point. 

The ornamental design for a fountain pen, as shown and described. 